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Rodríguez Torres, C.E.; Duhalde, S.; Fabiana Cabrera, A.; Sánchez, F.H.; Chilliote, C.; Florencia Vignolo, M. "Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition" (2006) Physica B: Condensed Matter. 384(1-2):341-344
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Abstract:

We present a study of crystalline structure, local environment around the magnetic atoms and magnetic behaviour of Fe0.3Ti0.7O2-δ films, produced by Pulsed Laser Deposition, as a function of oxygen pressure and substrate temperature. Dark films were obtained by deposition at low O2 pressure (between 2×10-3 and 10-2 Pa). These films are ferromagnetic with coercivities around 0.03-0.04 T. Fe atoms are found to be predominantly metallic Fe. Transparent films were obtained when deposition was performed at high O2 pressure (between 4 and 20 Pa). Fe atoms are mainly in +3 valence state. These films have a component magnetically ordered probably corresponding to α-Fe(Ti)2O3 and a paramagnetic one attributed to Fe substituted anatase. After a thermal treatment Fe changes to +2 valence state and α-Fe(Ti)2O3 orders in the ilmenite phase increasing ten times the saturation magnetization of the magnetically ordered (hysteretic) component. © 2006 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition
Autor:Rodríguez Torres, C.E.; Duhalde, S.; Fabiana Cabrera, A.; Sánchez, F.H.; Chilliote, C.; Florencia Vignolo, M.
Filiación:Dpto. de Física-IFLP, Fac. C. Exactas, UNLP., C.C. 67, 1900 La Plata, Argentina
Depto. de Física, Fac. Ingeniería, UBA, Paseo Colón 850, 1063 Buenos Aires, Argentina
Fac. Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, Buenos Aires, Argentina
Palabras clave:Fe doped TiO2 films; Magnetic semiconductors; Thin films; XAFS; Coercive force; Crystallization; Deposition; Ferromagnetic materials; Magnetization; Pulsed laser deposition; Titanium oxides; Fe doped TiO2 films; Magnetic characterization; Oxygen pressure; Transparent films; Thin films
Año:2006
Volumen:384
Número:1-2
Página de inicio:341
Página de fin:344
DOI: http://dx.doi.org/10.1016/j.physb.2006.06.039
Título revista:Physica B: Condensed Matter
Título revista abreviado:Phys B Condens Matter
ISSN:09214526
CODEN:PHYBE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v384_n1-2_p341_RodriguezTorres

Referencias:

  • Matsumoto, Y., Murakami, M., Shono, T., Hasegawa, T., Fukumura, T., Kawasaki, M., Ahmet, P., Koinuma, H., (2001) Science, 291, p. 854
  • Fujii, T., Kayano, M., Takada, Y., Nakanishi, M., Takada, J., (2004) Solid State Ionics, 172, p. 289
  • Duhalde, S., Vignolo, M.F., Chiliotte, C., Rodríguez Torres, C.E., Errico, L.A., Cabrera, A.F., Rentería, M., Weissmann, M., (2005) Phys. Rev. B, 72, pp. 161313R
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Citas:

---------- APA ----------
Rodríguez Torres, C.E., Duhalde, S., Fabiana Cabrera, A., Sánchez, F.H., Chilliote, C. & Florencia Vignolo, M. (2006) . Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition. Physica B: Condensed Matter, 384(1-2), 341-344.
http://dx.doi.org/10.1016/j.physb.2006.06.039
---------- CHICAGO ----------
Rodríguez Torres, C.E., Duhalde, S., Fabiana Cabrera, A., Sánchez, F.H., Chilliote, C., Florencia Vignolo, M. "Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition" . Physica B: Condensed Matter 384, no. 1-2 (2006) : 341-344.
http://dx.doi.org/10.1016/j.physb.2006.06.039
---------- MLA ----------
Rodríguez Torres, C.E., Duhalde, S., Fabiana Cabrera, A., Sánchez, F.H., Chilliote, C., Florencia Vignolo, M. "Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition" . Physica B: Condensed Matter, vol. 384, no. 1-2, 2006, pp. 341-344.
http://dx.doi.org/10.1016/j.physb.2006.06.039
---------- VANCOUVER ----------
Rodríguez Torres, C.E., Duhalde, S., Fabiana Cabrera, A., Sánchez, F.H., Chilliote, C., Florencia Vignolo, M. Structural and magnetic characterization of Fe0.3Ti0.7O2-δ films obtained by pulsed laser deposition. Phys B Condens Matter. 2006;384(1-2):341-344.
http://dx.doi.org/10.1016/j.physb.2006.06.039